Siemens Simatic S7-300 - Page 310

Analog modules
6.9 Analog input module SM 331; AI 8 x RTD; (6ES7331-7PF01-0AB0)
S7-300 Automation System Module data
6-76 Manual, 08/2006, A5E00105505-04
Technical data
Isolation test voltage
500 VDC
Current consumption
• from the backplane bus
• from power supply L+
max. 100 mA
max. 240 mA
Power loss of the module typ. 4.6 W
Formation of analog values
Measuring principle Integrating
Mode of operation 8-channel mode (hardware filter)
Integration/conversion time/resolution (per channel)
• programmable
• Basic conversion time in ms
• Additional conversion time for resistance measurement in ms
• Additional conversion time for wire-break monitoring in ms
• Resolution (including overshoot range)
• Noise suppression at interference frequency f1 in Hz
Yes
80
100*
0
16 bits (including sign)
400 / 60 / 50
Measured value smoothing None / low/ average/ high
Conversion time (per channel) 100 ms
Basic execution time of the module (all channels enabled) 200 ms
Mode of operation 8-channel mode (software filter)
Integration/conversion time/resolution (per channel)
• programmable
• Basic conversion time in ms
• Additional conversion time for resistance measurement in ms
• Additional conversion time for wire-break monitoring in ms
• Resolution (including overshoot range)
• Noise suppression at interference frequency f1 in Hz
Yes
8 / 25 / 30
25/ 43/ 48*
0
16 bits (including sign)
400 / 60 / 50
Measured value smoothing None / low/ average/ high
Conversion time (per channel) 25 ms/ 43 ms/ 48 ms
Basic execution time of the module (all channels enabled) 50 ms/ 86 ms/ 96 ms
Mode of operation 4-channel mode (hardware filter)
Integration/conversion time/resolution (per channel)
• programmable
• Basic conversion time in ms
• Additional conversion time for resistance measurement in ms
• Additional conversion time for wire-break monitoring in ms
• Resolution (including overshoot range)
• Noise suppression at interference frequency f1 in Hz
Yes
3,3****
100*
100**
16 bits (including sign)
400 / 60 / 50
Measured value smoothing None / low/ average/ high
Basic execution time of the module (all channels enabled) 10 ms